Verification II Standard 2 Back Catalog number: 53020 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678997 Tefluthrin, 100 µg/ml, Cyclohexane, 1ml Price on request 674830 D-(+)-Trehalose dihydrate, 250mg Price on request 73380 1,4-Butanediol Price on request